Knowing how to manage renovation contractors effectively is one of the most valuable things a homeowner can learn. Most renovation disputes — delayed payments, disputed scope, unfinished work — don’t start in the middle of a project. They start at the beginning, when everything felt too optimistic to put in writing.
The contractor relationship is defined by what you agree before work starts. Here’s what to get right.
Get everything in writing before work begins
A verbal agreement is not an agreement. It’s a shared memory that will diverge the moment there’s a disagreement about what was said.
At minimum, you need a written scope of works before anyone picks up a tool. This doesn’t need to be a legal contract — a detailed email thread that both parties have confirmed is far better than nothing. A signed letter of engagement is better still.
The scope should include:
- Exactly what work will be done, room by room
- Exactly what work is excluded
- The materials being used (brand, model, specification where relevant)
- Who supplies materials — contractor or homeowner
- Access arrangements — when the contractor can enter, where tools and materials can be stored
- Conditions for variations to the agreed scope
If a contractor is reluctant to put the scope in writing, that’s information. Good contractors work from written scopes because it protects them as much as it protects you.
Agree a payment schedule tied to milestones, not dates
Date-based payments create bad incentives. If payment is due on the 15th regardless of progress, there’s no mechanism connecting money to work. If the bathroom isn’t tiled by the 15th, the payment still falls due — and the contractor still gets paid.
Milestone-based payments solve this. Payment is triggered when a specific, verifiable stage of work is complete. The schedule might look like this:
- 20% deposit on contract signing
- 25% on completion of first fix (electrics and plumbing)
- 25% on completion of tiling and screed
- 20% on installation of fixtures and fittings
- 10% on snagging sign-off
This structure creates a clear connection between money and progress. It also gives you leverage if work stalls — the next payment isn’t due until the next milestone is reached.
As noted when planning your renovation timeline, milestones should be clear and verifiable. “Walls painted” is a milestone. “Good progress on the bathroom” is not.
Never pay more than 20 to 25 percent upfront. A contractor who insists on 50 percent or more before work starts is asking you to absorb their working capital risk. On a project of any size, that’s not a reasonable ask.
Set a communication protocol upfront
Renovation communication fails not because people don’t care — it’s because there’s no shared understanding of how it’s supposed to work.
Before work begins, agree:
- Who is the single point of contact on each side
- Which channel will be used for project communication (not Viber messages mixed with calls mixed with emails)
- How often you’ll have a formal progress conversation — daily check-in, or end-of-week summary
- How decisions about variations will be made and recorded
The channel question matters more than it seems. If the contractor updates you by Viber on Monday, a phone call on Wednesday, and an email on Friday, you have no coherent record of the project. When there’s a dispute about what was agreed, you’re scrolling through three different places trying to reconstruct a conversation.
Pick one channel. State it in the agreement. Use it consistently.
Document the scope of work in detail
Change orders are additions or alterations to the agreed scope that arise during the project. They’re normal — once you open a wall, you often find something that changes the plan. The problem isn’t change orders; it’s undocumented change orders.
Every variation to the agreed scope should be documented before the work happens. A brief written description, an agreed cost, and confirmation from both parties. Not a phone call. Not a promise. A document.
Without documentation, variations become the source of almost every end-of-project dispute. You thought the extra socket was included. The contractor thought it was a billable extra. Without a signed change order, you’re both right — and neither of you can prove it.
Keep a record of every conversation and decision
Throughout the project, decisions happen constantly. The contractor calls to say the tiles you chose are out of stock and asks you to pick an alternative. You agree on a substitution over the phone. Two weeks later, the invoice shows a higher cost for the substitute tiles — and you have no record of what you agreed.
This is the everyday friction of renovation management. Not fraud, not negligence — just the normal information loss that happens when decisions are made verbally and not recorded.
Keep a running log of every significant conversation: what was discussed, what was decided, who said what. A brief note at the time is enough. RevoHolm’s people and document features are designed specifically for this — logging contractor interactions and keeping decisions attached to the project they belong to, not scattered across a phone.
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